[Idea] Add editors to threads

Edit the first post of threads of others?

First of all, I know this isn't possible with this version of XenForo. I want to know what the community thinks and if it's possible after the upgrade.

So, say you're running a service with someone. However, you agree on a price change and the thread creator (who isn't you) is away on vacation. You'd have to wait for them to get back to change it. But, if the thread creator could add editors, then you could edit the post and fix the price without having the other person get on.

Which is why the ability to edit others' posts (with their permission, and only in the OP (opening post) of threads) would be useful. When creating a thread, there'd be an option: add editors, and you could select who you wanted to edit.